Panthera probably evolved in Asia, but the roots of the genus remain unclear. Genetic studies indicate that pantherine cats diverged from the subfamily Felinae between six and ten million years ago. Fossil records that appear to belong within the Panthera genus reach only 2.0 to 3.8 million years back.
Symbols. 1  The Screech Owl is the sacred bird of Hades. 2  Cypress Tree are the trees sacred to Hades, Aphrodite, and Artemis. 3  Cerberus, was his three headed pet dog is a symbol of his. 4  Snakes were sacred to him due to his previous role as a snake god called Zeus Meilichios.
----- Original Answer: Hades' symbol is his bronze helm o â¦ f terror that makes the wearer invisible. Hades lends it to both gods and mortal, for example, Perseus wore the helm when he went to kill Medusa and Athena wore is during the Trojan War so Ares would not be able to see her.